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dc.contributorEscuela Superior y Tecnica de Ingenieros de Minases_ES
dc.contributor.authorPrendes Pérez, Covadonga
dc.contributor.authorBuján Seoane, Sandra 
dc.contributor.authorOrdóñez Galán, Celestino
dc.contributor.authorCanga, Elena
dc.contributor.otherIngeniería Cartografica, Geodesica y Fotogrametriaes_ES
dc.identifier.citationPrendes, C., Buján, S., Ordoñez, C., & Canga, E. (2019). Large scale semi-automatic detection of forest roads from low density lidar data on steep terrain in Northern Spain. IForest, 12(4), 366-374.
dc.description.abstract[EN] While forest roads are important to forest managers in terms of facilitating the exploitation of wood and timber, their role is far more multifunctional. They permit access to emergency services in the case of forest fires as well as acting as fire breaks, enhance biodiversity, and provide access to the public to enjoy recreational activities. Detailed maps of forest roads are an essential tool for better and more timely forest management and automatic/semi-auto-matic tools allow not only the creation of forest road databases, but also enable these to be updated. In Spain, LiDAR data for the entire national territory is freely available, and the capture of higher density data is planned in the next few years. As such, the development of a forest road detection methodology based on LiDAR data would allow maps of all forest roads to be developed and regularly updated. The general objective of this work was to establish a low density LiDAR data-based methodology for the semi-automatic detection of the centerline of forest roads on steep terrain with various types of canopy cover. Intensity and slope images were generated using the currently available LiDAR data of the study area (0.5 points m-2). Two image classification approaches were evaluated: pixel-based and object-oriented classification (OBIA). The LiDAR-derived centerlines obtained with the two approaches were compared with the real centerlines which had previously been digitized in the field. The road width, type of surface and type of vegetation cover were also recorded. The effectiveness of the two approaches was evaluated through three quality indicators: correctness, completeness and quality. In addition, the accuracy of the LiDAR-derived centerlines was also evaluated by combining GIS analysis and statistical methods. The pixel-based approach obtained higher values than OBIA for two of the three quality measures (correctness: 93% compared to 90%; and quality: 60% compared to 56%) as well as in terms of positional accuracy (± 5.5 m vs. ± 6.8 for OBIA). The results obtained in this study demonstrate that producing road maps is among the most valuable and easily attainable products of LiDAR data analysis.es_ES
dc.publisherViterbo SISEFes_ES
dc.rightsAttribution-NoDerivatives 4.0 Internacional*
dc.subjectIngeniería forestales_ES
dc.subject.otherPixel-based Classificationes_ES
dc.subject.otherQuality Measureses_ES
dc.subject.otherForest Roads Networkes_ES
dc.subject.otherAccuracy Assessmentes_ES
dc.titleLarge scale semi-automatic detection of forest roads from low density LiDAR data on steep terrain in Northern Spaines_ES
dc.journal.titleiForest - Biogeosciences and Forestryes_ES
dc.description.projectThis study was funded by the SCALyFOR project (R&D Projects “Research Challenges”, Spanish Ministry of Economy and Competitivenesses_ES

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Attribution-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NoDerivatives 4.0 Internacional